Lock.



F. SOLEY.

LOCK.

APPLICATION FILED JULY 29, I912.

1 9 1% 1 ,9 1 9., Patented May 25, 1915 aws PETERS CO PHOT0-LITHO..WASHINGTON Dv TED STATEg AENT OFFICE.

FRANK SOLEY, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO MILLER LOCK CO.,013 PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

LOCK.

iaroia Specification of Letters Patent.

Patented May 25, 1915.

Application filed July 29, 1912. Serial No. 712,185.

tumbler designed to lift all or a plurality of the change tumblers.

One feature of the improvement forming the subject of my inventionconsists in pivotally mounting the master tumbler in the lock case on anaxis independent of the axis of the change tumblers so that when suchmaster tumbler is moved, there will be no tendency of the same to moveout of its normal plane of movement at right angles to its pivotalconnection. The master tumbler may carry a stafi journaled in the wallsof the lock case or it may be pivotally mounted on a fixed staff.

A further feature of my invention is the utilization of the mastertumbler as one of the change tumblers.

These and other features of my invention will be more fully describedhereinafter, reference being had to the accompanying drawings, in which:

Figure 1, is a view in elevation of a lock embodying my invention; Fig.2, is a similar view, with the top plate removed; Fig. 3, is a viewshowing the bolt and master tumbler; the change tumblers being removed;Fig. 4, is a sectional elevation on the line H, Fig. 2; Figs. 5 and 6,are views illustrating modified details within the scope of myinvention, and Fig. 7, is a perspective view of the master tumbler. I

The common practice heretofore has been to provide a master tumblerpivoted on the same axis as the other tumblers; in some instances havinga pin which carries said other tumblers, and in other instances having asleeve carrying the other tumblers, which sleeve in turn is journaled ona fixed 1n. p My improved construction may be described as follows:

In the drawings, 1 represents the lock case having the usual cover plate2 concealing the tumblers 3 and holding the latter in place on theirbearing post 3*. A sliding bolt is indicated at 4:, operating in a usualmanner; such bolt being provided at a point at the rear of its head witha fence 5 of the usual type for coaction with the tumblers for lockingand releasing the bolt.

The master tumbler or lifter which I employ with my improved lock isindicated at 6, and is pivotally mounted within the lock casing. Asshown in Figs. 2, 3, 4L and 7 it may be connected to a staff 7 providedwith an integral collar 8 for the permanent attachment to it by anysuitable means of said master tumbler, which latter, for such purpose,may be formed with a circular opening Just large enough to receive thesaid collar, and said collar is by preference swaged in place. When thestaff 7 is employed to carry the master tumbler, it is journaled in boththe wall 1 of the casing and the cover plate 2, as clearly indicated inFig. 4, and may be placed at a point beyond the bearing post 3 uponwhich the change tumblers are journaled, as clearly indicated in thedrawings. This master tumbler carries an arm or sweep 10 of a suflicientheight to engage all or as many of the change tumblers as may bedesired, depending upon the character of the master key or of thechange-keys, and the said change tumblers are provided with slots 11which may be brought into alinement with the fence 5 carried by the boltby the sweep 10 of the master tumbler, and when in such alinementfurther movement of the key will cause a ward of the same or the usualkey-bearing roll-back 12, which may be employed in my lock, to engageone wall of the recess 13 in the bolt and shift the latter to theunlocked position.

In manufacturing the change tumblers, the blanks are initially providedwith projections 9 which may be subsequently cut away or reduced to anydesired extent with reference to the position of the slots 11 inpreparing said change tumblers for as- .sembly in a lock; suchprojections, in their various lengths, lying in the path of the sweep orarm 10 of the master tumbler and being successively engaged by the samewhen the master tumbler is operated to bring the slots 11 into alinementwith the fence 5. In all instances the master tumbler is pivotallymounted in the lock casing but does not necessarily carry its pivot pin.Other arrangements may be provided within the scope ofmy invention. InFig. 5, I have shown an arrangement in which themaster tumblerisprovided with a sleeve 14: whereby it may be journaled on a staff 7riveted or otherwise fixed to the wall of the lock casing or the coverplate of the same- In this instance the sleeve is a separate elementproperly secured in. a suitable-manner to the master tumbler. In, Fig.6,. the tumbler is provided with an extended bearing which may be formedby drawing a portion of the metal to form a hub1l ;,whi'ch, hub may bejournaled on a fixed staff 7 carried by the lock casing or cover plate,

Other equivalent means 'I dee'm to be within the scope of my invention.

The master or lifter tumbler is preferably placed between the bank ofchange-key tumblers and the bolt, although it is obvious that it mightbe placed'at some other point or above the same, care being taken toinsure the presence of the proper means in the form of a sweep of thenecessary size to effect the shifting of all orasmany of the change-keytumblers as is necessary to insure the positioning of the slots of thesame in line with the fence 5.

In locks of thischaracter the change-keys do not normally engage themaster of lifter tumbler, which is of such a shape as to be independentof the fence when the changekey tumblers are moved to bring their slotsin registry with said fence, but I'am enabled to increase the number ofkey changes in a lock of this type without multiplying the tumblers, byemployingsaid master tumbler as a change tumbler. For this purpose themaster tumbler is provided with a slot 15 for alinement with the fence 5when moved by a ward of the key, and with, a slot 16 for alinement withsaid fence when moved by a master key for the purpose of moving aplurality or all of the change tumblers.

By mounting the master or lifter tumbler upon an independent pivot or,axis, there is no dangerof the same shifting or affecting the operationof the change-key tumblers, and if desired it can be removed withoutaffecting the operation ofthe lock by an ordinary, change-key, byslippinga spacing element to equal its thickness between the changetumblers and the rear portion ofthe bolt when it has been removed.

The keys are guided by the usual slotted keys-post 17 suitably mountedin the case and journaled in the wall and cover plate of the same, whichpost mayv or may not have the usual roll-back 12, and the several changetumblers are provided with the usualsprings 18 tending to hold saidtumblers in such position as to prevent retraction of the'bolt. When themaster tumbler is employed as a change tumbler, it will be provided witha suitable spring such as indicated at 19.

While my invention has been applied and is shown in connection with arimlock, it will be understood that its use is not limited to looks ofthis character, as it may be employed in connection with any form oflifter tumbler having the described function.

I claim:

1. In a master-key tumbler lock, the combination with a case body andcase cover thereof, of a post fixedly secured therein, change tumblerspivotally mounted on said post, a master-tumbler independently pivotedin vsaid casing at a point fixed with relation to the pivotal support ofthe change tumblers, and a sweep or lifter carried by saidmastlentumbl'er for engagement with said change tumblers.

2. In a master-key tumbler lock, the combination with the casing, of a.post fixedly secured "therein, a plurality of change tumblers carried bysaid post, said tumblers being notched at one endand provided withengaging surfaces parallel to the walls of said notches, said engaging.surfaces and notches bearing a fixed rel'ation,and an independentlymounted master-tumbler having a projecting portion for contact with theengaging surfaces of said change tumblers.

3. Thecombination, in a master-key'tumbler lock, of a casing, a bolthaving a fence, a series of pivotally mounted change tumblers, amaster-tumbler mounted independently of the mounting for the change keytumblers, said master-tumbler having a sweep, each of said changetumblers having at one end a notch to receive the fence, and engagingsurfaces in fixed. relation to said notch withwhich thesweep of themastertumbler contacts so that when the latter is actuated it will bringthe notches in the tumblers in alinement for the reception of the fence.

4. In a master-key tumbler lock, the combination of a casing, aplurality of change tumblers pivotally mounted therein, each tumblerhaving at the same end a projection and a notch, said projections beingof differentlengths and each having anengaging surface parallel to thewalls of the notch, the notches of'the respective tumblersbeing spacedthe same distance from the engaging surfaces of the projections of therespective tumblers, and a master-tumbler having a projection foroperative contact with said engaging surfaces.

5. In a master-key tumbler lock, the combination with a casing, a coverthere-for, a staff or post journaled at itsrespective ends in saidcasing and cover, a master-tumbler carried by said staff, a plurality ofchange tumblers pivotally mounted'in the lock' casing on an axisindependent of that of said staff, said change tumblers being notched attheir ends opposite their pivotalconnection,

a sweep or lifting element carried by the master-tumbler for coactionWith a plurality of the change tumblers, and a bolt, said master-tumblerbeing disposed between said change tumblers and the bolt and'the latterIn testimony whereof, I have signed my name to this specification, inthe presence of two subscribing Witnesses.

FRANK SOLEY.

having a fence With Which the notches of Witnesses: the change tumblersare brought into aline- MURRAY C. BOYER, ment. WM. A. BARR.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

